Federal taxation exists to take currency out of circulation, thus propping up the value of the remaining notes in circulation.
As such, your taxes don't "pay for" anything except perceived value.
If you have a bunch of notes, those notes become less valuable the more you accumulate.
If you have to destroy, say, 50% of your notes every year, however, and everyone else must do the same
Most Americans are woefully unaware of the way the Federal Reserve, fiat currency, and our fractional reserve banking system works.
They have an almost infantile notion that they send in a tax check, and that check goes to pay for government services.
The Federal Government never sees your tax money. It goes to the Treasury, which in turn goes to the Fed.
They central bank just want as little money in your hands as possible, because it makes the notes the Fed prints and hands over more valuable.